Make more function variables local to avoid polluting the environment

diff --git a/.bash/aliases.d/archives b/.bash/aliases.d/archives
index b708078..bd2a435 100644 (file)
--- a/.bash/aliases.d/archives
+++ b/.bash/aliases.d/archives
@@ -7,7 +7,7 @@ then
   function gztar()
   {
     [ -d "$1" ] || { echo "usage: gztar <dir> [tar options]" 1>&2; exit 1; }
-    DIR="$1"
+    local DIR="$1"
     shift
     tar "$@" -czvf "$(basename "$DIR").tar.gz" "$DIR"
   }
@@ -15,7 +15,7 @@ then
   function bztar()
   {
     [ -d "$1" ] || { echo "usage: bztar <dir> [tar options]" 1>&2; exit 1; }
-    DIR="$1"
+    local DIR="$1"
     shift
     tar "$@" -cjvf "$(basename "$DIR").tar.bz2" "$DIR"
   }
@@ -23,7 +23,7 @@ then
   function xztar()
   {
     [ -d "$1" ] || { echo "usage: xztar <dir> [tar options]" 1>&2; exit 1; }
-    DIR="$1"
+    local DIR="$1"
     shift
     tar "$@" -cJvf "$(basename "$DIR").tar.xz" "$DIR"
   }

diff --git a/.bash/aliases.d/debian b/.bash/aliases.d/debian
index 7efbc63..b65caa1 100644 (file)
--- a/.bash/aliases.d/debian
+++ b/.bash/aliases.d/debian
@@ -10,6 +10,7 @@ if command -v aptitude &> /dev/null;
 then
   function aptitude-remove-dep()
   {
+    local PACKAGES
     PACKAGES=$(apt-cache showsrc "$1" | grep Build-Depends | perl -p -e 's/(?:[\[(].+?[\])]|Build-Depends:|,|\|)//g')
     sudo aptitude markauto "$PACKAGES"
   }

diff --git a/.bash/aliases.d/record b/.bash/aliases.d/record
index 00372b3..fb90aa7 100644 (file)
--- a/.bash/aliases.d/record
+++ b/.bash/aliases.d/record
@@ -4,16 +4,19 @@ if command -v script &> /dev/null;
 then
   function record()
   {
+    local TIMESTAMP
     TIMESTAMP="$(date '+%Y-%m-%d-%H:%M:%S')"
 
     # The trick here is to use 'type' to eat any leading environment variables
     # and get to the command name.
+    local COMMAND_NAME
     COMMAND_NAME="$(type -P "$@" 2>/dev/null | cut -d ' ' -f 1)"
 
     [ "x$COMMAND_NAME" = "x" ] && return 1
 
     # Escape the argument so that it can be reused as shell input
     # NOTE: this is Bash specific.
+    local COMMAND_ESCAPED
     COMMAND_ESCAPED=$(printf "%q " "$@")
 
     script -q -e -c "$COMMAND_ESCAPED" "${TIMESTAMP}_$(basename "$COMMAND_NAME").log"